AAT1219 Boost Converter Overview

Description

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Category
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AAT1219 is a 5.00 V, 1.20 A switch current limit sync Boost Converter from . The input voltage from 2.40 V to 5.25 V  can be boosted into an output voltage ranging from 3.00 V to 5.00 V.

Features of the Boost Converter are fixed 1200 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 95 %. The minimum external component count is 8 and AAT1219 is available in 1 package option(s): TDFN33-12 .

For AAT1219 replacement search, select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 2.40 V
V-IN max. 5.25 V
Current-Limit typ.? 1.20 A
V-OUT min. 3.00 V
V-OUT max. 5.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
LBI/LBO no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 80 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 140 °C
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 95 %
Component count min. 8
current limit adjustable yes
Nr.of package options 1
CSP
SC70
SOT
MSOP
QFN/DFN TDFN33-12
SO/SOIC
SOP
DIP
TO
DDPAK

AAT1219 Datasheet

Link to the most up-to-date AAT1219 datasheet and the product page for EVM, tools and support information.

AAT1219

AAT1219 Price breaks and distributor sample stock

AAT1219 prices and available online distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with AAT1219 stock available

Available Distributors with stock: 0

no online Distributor with AAT1219 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to AAT1219. Optional, compare AAT1219 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AS1326 AS1326 product overviewAS1326 product overview AMS TDFN-10
0% LTC3125 LTC3125 product overviewLTC3125 product overview Linear Technology DFN-8
0% MAX1763 MAX1763 product overviewMAX1763 product overview Maxim Integrated TSSOP-EP-16
0% TPS61251 TPS61251 product overviewTPS61251 product overview Texas Instruments QFN-8
0% TPS61252 TPS61252 product overviewTPS61252 product overview Texas Instruments QFN-8
10% MAX1760 MAX1760 product overviewMAX1760 product overview Maxim Integrated TDFN-EP-10, uMAX-10
10% MAX1765 MAX1765 product overviewMAX1765 product overview Maxim Integrated TSSOP-EP-16
50% TPS61260 TPS61260 product overviewTPS61260 product overview Texas Instruments SON-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of AAT1219.

V-IN min. 2.4 V, Current-Limit typ. 1.2 A, V-OUT max. 5 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042010 1.0 3.2 4.8 27.00 4 x 4 x 1.8
74404052010 1.0 3.9 5.5 19.80 5 x 5 x 2
74404052012 1.2 3.6 5.2 23.40 5 x 5 x 2
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
7440520012 1.2 3.0 3.5 20.00 5.8 x 5.8 x 2
744062001 1.0 4.8 4.6 10.00 6.8 x 6.8 x 2.5
7440680010 1.0 2.8 3.3 32.00 8 x 8 x 1.2
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
7440700012 1.2 4.8 4.2 12.50 8 x 8 x 2
74408941010 1.0 3.0 5.4 29.50 4.8 x 4.8 x 2.1
74408942012 1.2 3.2 5.5 22.00 4.8 x 4.8 x 3.1
74408943010 1.0 3.3 6.5 19.00 4.8 x 4.8 x 4.1
74438324010 1.0 2.8 4.9 49.00 2.5 x 2 x 1.2
74438334010 1.0 2.8 6.6 42.10 3 x 3 x 1.2
74438334012 1.2 2.7 6.0 55.00 3 x 3 x 1.2
74438335010 1.0 2.7 4.5 39.00 3 x 3 x 1.5
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
74438336012 1.2 3.9 4.8 30.00 3 x 3 x 2
7447730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447785001 1.0 3.5 4.5 31.00 5.9 x 6.2 x 3.3
7447786001 1.0 5.0 5.5 28.00 5.9 x 6.2 x 5.1
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
744787012 1.2 4.9 6.0 8.50 7.8 x 7 x 5
74479299210 1.0 3.0 5.2 38.00 3.2 x 2.5 x 1.2
78438334010 1.0 2.8 6.6 42.10 3 x 3 x 1.2
78438334012 1.2 2.7 6.0 55.00 3 x 3 x 1.2
78438335010 1.0 2.7 4.5 39.00 3 x 3 x 1.5
7847730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
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